Generic - Medium Soft Serve Vanilla Ice Cream Cone. *Percent Daily Values are based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Thyroid hormone tests are blood tests that check how well the thyroid gland is working. The thyroid gland makes hormones that regulate the way the body uses energy.The thyroid gland is a butterfly-shaped gland that lies in front of your windpipe (trachea), just below your voice box (larynx).hyroid hormone tests are done to: 1  Find out what is causing an abnormal thyroid-stimulating hormone (TSH) test. 2  For more information, see the topic Thyroid-Stimulating Hormone (TSH) . 3  This is the most common reason for thyroid hormone tests. 4  Check how well treatment of thyroid disease is working.
The T4 test is known as the thyroxine test. The TSH test measures the level of thyroid-stimulating hormone in your blood. These are the two most common thyroid function tests and are usually ordered together.They are routinely performed on newborn babies to identify a low-functioning thyroid gland.3 Results. T3 tests, which check for levels of triiodothyronine, are usually ordered if T4 tests and TSH tests suggest hyperthyroidism. The T3 test may also be ordered if you are showing signs of an overactive thyroid gland. The normal range for the T3 is 100-200 nanograms of hormone per deciliter of blood.